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StringGrid

Posted on 2000-05-16
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Last Modified: 2010-04-04

Can you change the font, font color, for each of the rows or cells in a string grid or you necessarily need a customed component?
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Question by:vdelgado
  • 2
4 Comments
 
LVL 3

Expert Comment

by:shenqw
ID: 2815510
I think you must draw the stringgrid cell yourself. use the OnDrawCell.
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LVL 17

Accepted Solution

by:
inthe earned 150 total points
ID: 2815529
yes must ownerdraw them to change colors of rows or columns..

simple example:

procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  with Sender as TStringGrid do
  begin
    if ACol = 1 then
      Canvas.Font.Color := clRed
    else
      Canvas.Font.Color := clBlack;
    Canvas.TextRect(Rect, Rect.Left, Rect.Top, Cells[ACol, ARow]);
  end;
end;



or fuller example:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Grids, StdCtrls;

type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    procedure StringGrid1DrawCell(Sender: TObject; Col, Row: Longint;
      Rect: TRect; State: TGridDrawState);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.StringGrid1DrawCell(Sender: TObject; Col, Row: Longint;
  Rect: TRect; State: TGridDrawState);
var
  FocusedRect : TRect;
begin
  FocusedRect := Rect;
  StringGrid1.Canvas.Font.Color  := clBlack;
  StringGrid1.Canvas.Pen.Color := clBlack;
  StringGrid1.Canvas.Pen.Width := 1;
  if ( gdFocused in State ) then begin
    StringGrid1.Canvas.Font.Style  := [fsBold];
    StringGrid1.Canvas.Font.Color  := clRed;
    StringGrid1.Canvas.Brush.Color  := clblue;
  end
else
    StringGrid1.Canvas.Font.Style  := [];
  InflateRect(FocusedRect, -2, -2);
  StringGrid1.Canvas.FillRect(FocusedRect);
   if ( gdSelected in State ) then
    StringGrid1.Canvas.TextOut(Rect.Left+8, Rect.Top+2, StringGrid1.Cells[Col,Row])   else
    StringGrid1.Canvas.TextOut(Rect.Left+2, Rect.Top+2, StringGrid1.Cells[Col,Row])
 end;

end.
0
 

Author Comment

by:vdelgado
ID: 2817601
The answer proposed by Inthe is good as far as you define the color and font of a selected cell, but what I want to do is to define a specific color and/or font for the cells as I am filling the grid without the need to select a specific cell.
0
 
LVL 17

Expert Comment

by:inthe
ID: 2819294
you probably just want to do something like this then :

procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  with Sender as TStringGrid do
  begin
  if (ACol = 0)  then
      Canvas.Brush.Color := clActiveCaption
    else
    if  arow = 0 then
      Canvas.Brush.Color := clActivecaption
    else
    if (ACol = 1) and (arow = 2) then
      Canvas.Brush.Color := clRed
    else
    if (ACol = 2) and (arow = 3) then
      Canvas.Brush.Color := clgreen
    else
    if (ACol = 2) and (arow = 1) then
      Canvas.Brush.Color := clFuchsia
    else
    if (ACol = 1) and (arow = 3) then
      Canvas.Brush.Color := clAqua
    else
    if (ACol = 2) and (arow = 4) then
      Canvas.Brush.Color := clYellow
    else
      Canvas.Brush.Color := clblue;
    Canvas.TextRect(Rect, Rect.Left, Rect.Top, Cells[ACol, ARow]);
  end;
end;

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